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i remember on the First SER.Net Dyno day back in 1999, the Bosch was dynoed back to back w/ the oem NGK platinum plugs - The Bosch platinums lost 1-2 HP compared to the NGK Platinums.
Mike K. - do you still remember the other plugs that where tested?
Tevs
Mike K. - do you still remember the other plugs that where tested?
Tevs